Acetylene-gas-generating lamp.



No. 632,||7. Patented Aug. 29, |899.`

R. HoLLlDAY.

ACETYLENE GAS GENERATING LAMP.

(Application filed July 1B, 1898.)

(Nb Model.)

Witnesses 1m; nnnms varias co. mofaurwu. wAsmNnmn, n. c

UNrrnD STATES `ArnNfr Fries.

READ HOLLIDAY, OF HUDDERSFIELD, ENGLAND, ASSIGNOR TO THE READ I-IOLLIDAYda SONS, LIMITED, OF SAME PLACE.

ACETYL'EN E-GAS-G EN ERATING LAMP.

SPECIFICATION forming part of Letters Patent No. 632,117, dated August29, 1899.

Application med July is, 189s. sain No. 686,315. in@ model.)

To @ZZ whom, t may concern:

Be it known that I, READ HOLLIDAY, a citt Zen of England, residing atEdgerton, Huddersfield, in the county of York, England, have inventednew and useful Improvements in Lamps or Apparatus for Use in BurningAcetylene Gas, (for which I have obtained Letters Patent in GreatBritain January 26, 1898, No. 2,078; in Germany June 4, 1898; in FranceJune 7, 1898, and in Belgium June 8, 1898,) of which the following is aspecification.

These improvements relate to lamps or apparatus for use in generatingand burning acetylene gas produced in the lamps by the action of Wateron calcium carbid or a similar body, and consist in bringing the waterinto contact with the carbid by the use of a capillary Siphon-that is tosay, Water is conducted by means of a wick or capillary action to ahigher level than the carbid, and by the continuation of the same oranother wick or capillary conveyer attached to it the water is drawndownward into contact with the carbid. The descending wick can be openedout and distributed over or among the carbid so as to secure the bestand most even production of the gas, the supply of water being stoppedor regulated by a valve at one end of a tube, which preferably is thatwhich serves as wick-holder for the ascending water.

Figure 1 is a substantially central vertical section through the lamp.Fig. 2 is a plan of the middle portion of the lamp with the coverremoved.

A is the carbid-chamber.

B is the reservoir for water, formed by the outer water-tight wall B andthe inner wall B2, leaving the carbid-chamber A referred to within theinner wall and completely isolated from the water in the space betweenthose walls, except by means of the vertical passage afforded by thetube B2 between the two. This tube is lled by a capillary siphon,consisting of a Wick C, which has contact with the water, and passes upto and down into contact with the carbid in the chamber A. Theitube B3is formed at the top end with a seatingB4fora valve D, mounted on ascrewed stem D', which engages a correspondinglythreaded screw-openingin top of the cover E and is furnished with a milled head D2.

When this valve D is screwed downvby turnprojectiomwhich projectionreceives between its arms the screw-stem b', hinged at b2 to the outerwall of the lamp. This screw-stem b' is locked to the fork e by thescrewed button h3, while for opening the cover in order to gain accessto the internal parts of the lamp the button is loosened and thescrew-stem carry` ing it is swung clear thereof. The cover E is formedWith an annular recess, in which is held an annular ring of india-rubberor other suitable packing material, which ring when the @over is pressedinto closed position forms a tight packing between those parts.

The L-shaped tube G serves to convey the gas generated in chamber A tothe burner H, said burner being socketed in the junctionpiece G',connecting the pipe G thereto.

G2 is a screw-stopper to open or close the outlet G3 in the junction-piece G' to let out any liquid.

B5 is a screw tubular passage communicating between the water-chamber Band the outer air, and into this tube fits the nipple B6, the lineopening in which serves as an outlet to relieve any pressure in suchchamber.

I is a supporting device for the lamp-body to the bracket of themachine; but any other usual or suitable device for the purpose may beemployed to effect its support.

J is the burner-chamber, which is here shown provided with a hinged lidor cover J Between the burner-chamber in rear of the burner and theadjoining wall of the Water chamber B is interposed an insulating layerof asbestos j, through which and the respective thicknesses of metal Band J the rivets J' 'j paSS- J2 is an outlet'for the products ofcombustion, and J 3 is an asbestos shield provided to shield the same.

J 4 is the lens in the cover J By these means it will be seen that-thefeed IOO of Water is attained by the controlled use of the capillaryaction of the cellular tissue of a fibrous material or Wick whereby theWater is raised in uniform and easilyregulated quantities from theWater-reservoir and deposited on and among the carbid or gas-producingmaterial of a similar nature instead of by utilizing the flow of liquidunder pressure With its attendant difficulties of regulation andWastefulness.

Having noW particularly described and ascertained the nature of my saidinvention and in what manner the same is to be performed, I declare thatWhat I claim is l. In a lamp for burning acetylene gas, the combinationwith a relatively-fixed carbidchamber, of a Water-chamber surroundingthe same, a vertical feed-passage through the carbid-chamber andcommunicating at the lower end with the Water-chamber, a connectionhaving capillary attraction extending through said passage and down intothe carbid-chamber, an adjustable pressure-check mounted centrally oversaid passage and arranged to bear upon said connection at the pointWhere it is bent over the end of the' passage and press the same downagainst the upper end of the passage through the carbidchamber, as setforth.

2. In a lamp `for burning acetylene gas, the combination with astationary earbid-chamber and a water chamber surrounding the' same andextending therebeneath, of a tube extending centrally through thecarbid-cham ber and communicating at the lower end with theWater-chamber, a Valve seating on the upper end of said tube, aconnection between the Water and carbid chambers extending up throughthe said tube and having capillary attraction and bent over the saidseatin g, and a pressure-check independent of the chambers andadjustable vertically in line With said central tube to press upon thesaid connection at the point where it bends over the said seating as andfor the purpose specified.

READ HOLLIDAY.

Witnesses:

J oHN CooDE FoRcE, ALFRED GEORGE BRooKEs.`

